html {
    height: 100%;
}

body {
    background-color: #F3F4F6;
    height: 100%;
    /* background-color: black; */
    margin: 0;
}

/* 清除浮动 */
.clearfix::after {
    display: block;
    height: 0;
    content: "";
    clear: both;
    visibility: hidden;
}

/* 修改全局滚动条样式 */
/*全局滚动条样式*/
/* ::-webkit-scrollbar {
    width: 5px;
    height: 14px;
}

::-webkit-scrollbar-thumb {
    background-color: #b6b6b6;
} */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    /* background: #163361; */
    background: #F3F4F6;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    /* background: #409EFF; */
    background: #b6b6b6;
    border-radius: 3px;
}


/*全局滚动条样式结束*/


.fl {
    float: left;
}

.fr {
    float: right;
}

.tac {
    text-align: center;
}